OnDragDetected fires off with a single click for 3D widgets

UE - Editor - UI Systems - May 11, 2015

When Using the On Drag Detected on a 3D widget, the drag function fires off on a single click (No dragging necessary) ...

Changing number of existing UHierarchicalInstancedStaticMeshComponent in Blueprint causes crash.

UE - Graphics Features - Oct 14, 2016

If using a UHierarchicalInstancedStaticMeshComponent in a C++ class and adding instances via the OnConstruction( ) function, editor can crash. ...

Fbx importer crash when reordering material array

Tools - Dec 13, 2016

Its possible to have a fbx file which as unused material in the fbx node. The reorder material function is not handling this case. ...

Need to remove dependency on log2 on Android for older versions

UE - Platform - Mobile - Jun 27, 2017

The log2 function does not exist in libc.so on older Android. Using FMath::Log2 instead solves the issue. ...

External textures only work in pixel shaders

UE - Platform - Mobile - Nov 21, 2017

External textures currently only support pixel shaders, presumably because some platforms, such as Android only have pixel shader support. On other platforms this causes a regression though: For exa ...

[CrashReport] UE4Editor_CoreUObject!UStruct::IsChildOf() [class.h:373]

UE - Gameplay - Jan 24, 2018

Comments from users:I pressed Play while having a directional light selected in-editorChanged landscape collision mip level. ...

The cloth mask vertexcolor is not updated when re-importing new vertexcolors

UE - Simulation - Physics - Character - Oct 7, 2019

The function UClothingAssetFactory::ImportToLodInternal that set the FClothPhysicalMeshData structure is not call again when we re-import so the vertex colors are not updated. ...

Niagara crash when duplicating an emitter in the timeline through right-click menu

UE - Niagara - Dec 11, 2019

Trying to duplicate an emitter from the timeline crashes the editor. This looks to be the result of UMovieSceneNiagaraEmitterTrack not implementing the function SupportsType.  ...

iOS package with Metal Desktop Renderer renders reflections incorrectly

UE - Rendering Architecture - RHI - Apr 15, 2022

When having Metal Desktop Renderer ON, the project renders incorrectly and shows a coloring/lighting issue on the character's reflection. ...

[Feature Request] Allow bulk-assignment of values during blend profile/mask creation

UE - Anim - Runtime - Oct 16, 2024

Users have reported that manually editing each bone when generating blendmasks to be tedious and could be easier with some bulk editing functionality. ...